[nradov]

Those are not alternatives. VPNs and botnets already exist. We have minimal practical ability to control Internet traffic or transactions between most foreign countries. All it takes is a single compromised device in the USA for the scam traffic to get through.

[throwaway48476]

There are very few transatlantic cables that carry all of the internet. It would be very easy to cut them. VPNs don't make any difference.

[nradov]

Come on, be serious. No one is going to cut any transatlantic cables just to prevent scams. VPNs make a huge difference: as long as you can get a route out somewhere then you can use a VPN (possibly to a compromised host) to make your traffic appear to be coming from another source.

[throwaway48476]

You can't VPN on a non existent path. Or bomb them. All it takes is an actual desire to stop scammers.